barrier/lib/platform/CMSWindowsScreenSaver.h

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/*
* synergy -- mouse and keyboard sharing utility
* Copyright (C) 2002 Chris Schoeneman, Nick Bolton, Sorin Sbarnea
*
* This package is free software; you can redistribute it and/or
* modify it under the terms of the GNU General Public License
* found in the file COPYING that should have accompanied this file.
*
* This package is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
2010-06-20 17:38:51 +00:00
*
* You should have received a copy of the GNU General Public License
* along with this program. If not, see <http://www.gnu.org/licenses/>.
*/
#ifndef CMSWINDOWSSCREENSAVER_H
#define CMSWINDOWSSCREENSAVER_H
#include "IScreenSaver.h"
#include "CString.h"
#define WIN32_LEAN_AND_MEAN
#include <windows.h>
class CThread;
//! Microsoft windows screen saver implementation
class CMSWindowsScreenSaver : public IScreenSaver {
public:
CMSWindowsScreenSaver();
virtual ~CMSWindowsScreenSaver();
//! @name manipulators
//@{
//! Check if screen saver started
/*!
Check if the screen saver really started. Returns false if it
hasn't, true otherwise. When the screen saver stops, \c msg will
be posted to the current thread's message queue with the given
parameters.
*/
bool checkStarted(UINT msg, WPARAM, LPARAM);
//@}
// IScreenSaver overrides
virtual void enable();
virtual void disable();
virtual void activate();
virtual void deactivate();
virtual bool isActive() const;
private:
class CFindScreenSaverInfo {
public:
HDESK m_desktop;
HWND m_window;
};
static BOOL CALLBACK findScreenSaverFunc(HWND hwnd, LPARAM lParam);
static BOOL CALLBACK killScreenSaverFunc(HWND hwnd, LPARAM lParam);
DWORD findScreenSaver();
void watchDesktop();
void watchProcess(HANDLE process);
void unwatchProcess();
void watchDesktopThread(void*);
void watchProcessThread(void*);
void setSecure(bool secure, bool saveSecureAsInt);
bool isSecure(bool* wasSecureAnInt) const;
private:
bool m_is95Family;
bool m_is95;
bool m_isNT;
BOOL m_wasEnabled;
bool m_wasSecure;
bool m_wasSecureAnInt;
HANDLE m_process;
CThread* m_watch;
DWORD m_threadID;
UINT m_msg;
WPARAM m_wParam;
LPARAM m_lParam;
// checkActive state. true if the screen saver is being watched
// for deactivation (and is therefore active).
bool m_active;
};
#endif